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assura lvs problem in ibm 90nm pdk

iamlearning
Hi all,
Inspite of 'check and save'ing my schematic from the schematic window and recreating the cdl netlist several times, I am getting the following error when doing the LVS of a mimcap of ibm 90nm process with assura32-cadence ic613.

Loading IBM PDK cms9flp Procedures for Cadence Version

"av3.2:Production:dfII6.1.3:IC6.1.3.500.4"
Net Listing Mode is Analog
*Error* schematic cell: rf9flp mimcap symbol
The schematic was never extracted or is not current in the schematics editor.
Use the `Check and Save' operation in the schematics editor to correct this.
The lastSchematicExtraction property is missing.
1 error(s) encountered, vldb not generated
Error - dfIIToVldb failed to execute

*WARNING* /usr/local/cadence/assura32/tools/assura/bin/nvn exit with bad status
*WARNING* Status 256
*WARNING* Assura execution terminated

This problem is only for the cells containg mimcap and iductor, because I could complete the lvs of an inverter successfully. Even, this error does not apear when I use assura317 instead of assura32.

Can anyone please give me any clue to get out of this strange error?
Thank You ...
Parents

  • schematic view of the nfet_rf is nothing special. It is same as the symbol of the nfet, but difference is- it is surrounded by a green circle. No other device symbols like diode,resistor or capacitor are included. Probably the symbol is different from the 8rf. However, the model of the nfet_rf uses the model of nfet, this is for sure.

    Shall I rename the copied symbol of mimcap to 'auLvs' or the view type is to be changed anyway? I am not clear because, if I have a symbol named auLvs derived from the mimcap with view type 'symbol', then what will happen when I shall try the same for the inductor? Shall not I attempt to have a couple of 'auLvs' with the view type- 'symbol'?

    Thank You for your suggestions :)

    Best Regards ...

Reply

  • schematic view of the nfet_rf is nothing special. It is same as the symbol of the nfet, but difference is- it is surrounded by a green circle. No other device symbols like diode,resistor or capacitor are included. Probably the symbol is different from the 8rf. However, the model of the nfet_rf uses the model of nfet, this is for sure.

    Shall I rename the copied symbol of mimcap to 'auLvs' or the view type is to be changed anyway? I am not clear because, if I have a symbol named auLvs derived from the mimcap with view type 'symbol', then what will happen when I shall try the same for the inductor? Shall not I attempt to have a couple of 'auLvs' with the view type- 'symbol'?

    Thank You for your suggestions :)

    Best Regards ...

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